Vivaldi Snapshot 1.0.403.17 recently released, comes with the latest fixes. According to the developers website “For sessions, we have added the missing delete button, fixed the problem with sessions of the same name and added in menu items for Mac. In addition the changelog includes fixes for some of our most frequently reported bugs”. These changes fix a wider range of things than their titles might suggest, so give them a test and let us know if any of your worst issues are now resolved.